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A136172 as a simple table

n a(n)
0 1
1 2
2 9
3 105
4 2702
5 154609
6 19092682
7 5161046609
8 3089394167519
9 4175309542037953
10 12956948188014836324
11 93772653247517510010693
12 1603175184493001749597050954
13 65450800470044797091307950768285

[1,2,9,105,2702,154609,19092682,5161046609,
 3089394167519,4175309542037953,
 12956948188014836324,93772653247517510010693,
 1603175184493001749597050954,
 65450800470044797091307950768285]

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Last modified June 18 12:14 EDT 2021. Contains 345099 sequences. (Running on oeis4.)